Lord Ivar separated from his wife, Lady Penny Mountbatten
, back in 2011 after making it public that he had struggled with his own sexuality throughout the duration of their relationship.
A service overlooking Mullaghmore harbour in Co Sligo remembered Mountbatten
, 79, his grandson Nicholas Knatchbull, 14, Lady Doreen Brabourne, 83, and Paul Maxwell, 15, who died when the IRA blew up the boat they were on.
had been taking his usual annual break - boating and fishing.
Although he was pulled from the water, Lord Mountbatten
's legs had been almost severed and he died shortly after.
Lady Edwina Mountbatten
(Gillian Anderson) and their daughter Pamela (Lily Travers) also make the journey in the face of shocking reports about sectarian violence.
It follows years of speculation over the private life of Mountbatten
, who once said he and Edwina "spent all our married lives getting into other people's beds".
Homosexual acts were banned here until 1967 and it is believed many FBI memos on Mountbatten
's sexuality have been edited or destroyed.
In August 1979, Lord Mountbatten
was killed by a bomb planted in his boat Shadow V while he was holidaying in the Irish Republic.
Lord Louis "Dickie" Mountbatten
was the last British Viceroy and first Governor-General of independent India.
Chadha has also brought into focus the British side of the story, and shows what role Lord Mountbatten
- the last Viceroy of India - played in all of it.
Stillwell and Mountbatten
in Burma: Allies at War, 1943-1944.
Stilwell and Mountbatten
in Burma: Allies at War, 1943-1944 examines the unusually contentious relationship between American General Joseph "Vinegar Joe" Stilwell and British Admiral Lord Louis Mountbatten
in the China-Burma-India Theater and the South East Asia Command for a twelve-month period during World War II.